because it's a loving cop's JOB to do those things. you don't get a loving news report every-time an engineer builds a good building or a teacher teaches a classroom well. you do hear, however, when a teacher breaks the rules and interferes with a student, or an engineer was negligent and constructed a deficient building. when a cop forgets up it should be exposed, and it SHOULD be something to avoid in the future.
Sure, but what about when a cop does something outstanding in his field? One of my local police officers took time off to help in a school play. He dressed up and played the part of a police officer during a school benefit performance. He's super nice everyone loves him. No way that would make national headlines.
The thing is with this is that a cop killing someone (lawfully actually in this case) it makes national headlines, not just onto the desk of the DA for investigation. You get people who's only idea of police is brutal tyrannical murderers who shoot people walking down the street because it's all they ever hear about. Incidents of police abuse shouldn't be milked and spread with the intent of making the world look mean.
But that's what sells I guess.
